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(PHP ActiveX) Compress String Feed to Base64This example receives incoming text data in chunks, compresses as a stream, and accumulates the compressed data in base64. The purpose is to demonstrate the BeginCompressStringENC, MoreCompressStringENC, and EndCompressStringENC methods.
<?php // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sbCompressedBase64 = new COM("Chilkat.StringBuilder"); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Compression') $compress = new COM("Chilkat.Compression"); $compress->Algorithm = 'deflate'; $compress->Charset = 'utf-8'; $compress->EncodingMode = 'base64'; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.StringBuilder') $sbIndex = new COM("Chilkat.StringBuilder"); for ($i = 0; $i <= 24; $i++) { // Note: It is possible (and normal) for a BeginCompress* or MoreCompress* method to return // an empty string (or 0 bytes). When this happens, the input data is not lost. It will be flushed // in a subsequent call. $sbIndex->Clear(); $sbIndex->AppendInt($i); if ($i == 0) { $sbCompressedBase64->Append($compress->beginCompressStringENC($sbIndex->getAsString())); } else { $sbCompressedBase64->Append($compress->moreCompressStringENC($sbIndex->getAsString())); } $sbCompressedBase64->Append($compress->moreCompressStringENC(': This is a line of data to be compressed...\r\n')); } // Flush any remaining output. $sbCompressedBase64->Append($compress->endCompressStringENC()); print 'The base64 encoded compressed text:' . "\n"; print $sbCompressedBase64->getAsString() . "\n"; // Now decompress in one call: $originalText = $compress->decompressStringENC($sbCompressedBase64->getAsString()); print $originalText . "\n"; ?> |
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